EP 3656761 B1 20220629 - METHOD FOR PRODUCING PURIFIED METHIONINE AND METHOD FOR PREVENTING CAKING OF METHIONINE
Title (en)
METHOD FOR PRODUCING PURIFIED METHIONINE AND METHOD FOR PREVENTING CAKING OF METHIONINE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON GEREINIGTEM METHIONIN UND VERFAHREN ZUR PRÄVENTION DER VERKRUSTUNG VON METHIONIN
Title (fr)
PROCÉDÉ DE PRODUCTION DE MÉTHIONINE PURIFIÉE ET PROCÉDÉ DE PRÉVENTION DE L'AGGLUTINATION DE LA MÉTHIONINE
Publication
Application
Priority
- JP 2017140093 A 20170719
- JP 2018027014 W 20180719
Abstract (en)
[origin: EP3656761A1] The present invention addresses the problem of providing a method for producing purified methionine, the method being capable of preventing the caking of methionine. The present invention pertains to a method for producing purified methionine from crude methionine, the method comprising (1) a step for obtaining a wet cake of washed crude methionine, (2) a step for adjusting the pH of the wet cake, and (3) a step for drying the wet cake after the pH adjustment, wherein the pH of the wet cake after the pH adjustment is 5.2-6.1.
IPC 8 full level
C07C 319/28 (2006.01); C07C 323/58 (2006.01)
CPC (source: EP US)
C07C 319/28 (2013.01 - EP US); C07C 323/58 (2013.01 - US); Y02P 60/87 (2015.11 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3656761 A1 20200527; EP 3656761 A4 20210407; EP 3656761 B1 20220629; CN 110740990 A 20200131; JP 7181199 B2 20221130; JP WO2019017415 A1 20200528; SG 11202000147T A 20200227; US 10995065 B2 20210504; US 2020207708 A1 20200702; WO 2019017415 A1 20190124
DOCDB simple family (application)
EP 18834474 A 20180719; CN 201880038785 A 20180719; JP 2018027014 W 20180719; JP 2019530583 A 20180719; SG 11202000147T A 20180719; US 201816631328 A 20180719